Tracking and Disturbance Suppression of the Radio Telescope Servo System Based on the Equivalent-Input-Disturbance Approach by Lei Yang, Na Wang, Zhiyong Liu, Ning Li

“…This paper presents a composite control algorithm for the radio telescope servo control system to address the target tracking and matched/mismatched disturbance suppression problems. …”
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Tidally Heated Sub-Neptunes, Refined Planetary Compositions, and Confirmation of a Third Planet in the TOI-1266 System by Michael Greklek-McKeon, Shreyas Vissapragada, Heather A. Knutson, Akihiko Fukui, Morgan Saidel, Jonathan Gomez Barrientos, W. Garrett Levine, Aida Behmard, Konstantin Batygin, Yayaati Chachan, Gautam Vasisht, Renyu Hu, Ryan Cloutier, David Latham, Mercedes López-Morales, Andrew Vanderburg, Carolyn Heffner, Paul Nied, Jennifer Milburn, Isaac Wilson, Diana Roderick, Kathleen Koviak, Tom Barlow, John F. Stone, Rocio Kiman, Judith Korth, Jerome P. de Leon, Izuru Fukuda, Yuya Hayashi, Masahiro Ikoma, Kai Ikuta, Keisuke Isogai, Yugo Kawai, Kiyoe Kawauchi, Nobuhiko Kusakabe, John H. Livingston, Mayuko Mori, Norio Narita, Motohide Tamura, Noriharu Watanabe, Gareb Fernández-Rodríguez

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Algorithm and mathematical model for geometric positioning of segments on aspherical composite mirror by B. Conquet, L. F. Zambrano, N. K. Artyukhina, R. V. Fiodоrtsev, A. R. Silie

“…In recent years, the largest terrestrial and orbital telescopes operating in a wide spectral range of wavelengths use the technology of segmented composite elements to form the main mirror. …”
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Carbon Nanotube Layer for Reduction of Fiber Print-Through in Carbon Fiber Composites by Joana F. Guedes, Marta S. S. Martins, Ramiro Martins, Nuno Rocha

“…Replica method is used for the production of lightweight telescope mirrors. …”
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IMPROVEMENT OF THE HYDRAULIC EXCAVATOR’S WORKING EQUIPMENT by A. I. Demidenko, I. S. Kuznetsov

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Experiment and simulation of single diamond abrasive particle scratching RB-SiC composite material by Dehan ZHANG, Kang DING, Xintong CAI, Feng YANG, Zhigang DONG, Yan BAO, Xiaoguang GUO, Renke KANG

“…ObjectivesReaction-sintered silicon carbide (RB-SiC) composite materials have excellent properties such as high specific stiffness, high hardness, and corrosion resistance, and are widely used in important equipment such as space telescopes and aerospace combustion chambers. …”
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JWST COMPASS: NIRSpec/G395H Transmission Observations of the Super-Earth TOI-776 b by Lili Alderson, Sarah E. Moran, Nicole L. Wallack, Natasha E. Batalha, Nicholas F. Wogan, Anne Dattilo, Hannah R. Wakeford, Jea Adams Redai, Munazza K. Alam, Artyom Aguichine, Natalie M. Batalha, Anna Gagnebin, Peter Gao, James Kirk, Mercedes López-Morales, Annabella Meech, Johanna Teske, Angie Wolfgang

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A High-resolution Spectroscopic Survey of Directly Imaged Companion Hosts. I. Determination of Diagnostic Stellar Abundances for Planet Formation and Composition by Aneesh Baburaj, Quinn M. Konopacky, Christopher A. Theissen, Sarah Peacock, Lori Huseby, Benjamin J. Fulton, Roman Gerasimov, Travis S. Barman, Kielan K. W. Hoch

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A Next-generation Exoplanet Atmospheric Retrieval Framework for Transmission Spectroscopy (NEXOTRANS): Comparative Characterization for WASP-39 b Using JWST NIRISS, NIRSpec PRISM,... by Tonmoy Deka, Tasneem Basra Khan, Swastik Dewan, Priyankush Ghosh, Debayan Das, Liton Majumdar

“…This hybrid approach enables a comparison between traditional Bayesian methods and computationally efficient machine learning techniques. …”
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Engineer Richard Fiedler and his Flamethrower Epic in Russia on the Eve of the First World War by M. V. Supotnitskiy

“…Fiedler managed to reach the gunreach of jet flamethrowers to the distances that are difficult to cover even today, and also to substantiate the tactical methods of their application. Fiedler's flamethrowers were successfully tested in Russia and in Germany in 1909–1910. …”
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An Eccentric Sub-Neptune Moving Into the Evaporation Desert by Sydney A. Jenkins, Andrew Vanderburg, Ritika Sethi, Sarah Millholland, Joseph E. Rodriguez, Luca Fossati, Andreas Krenn, Emily Pass, Alexander Venner, R. Paul Butler, Hugh Osborn, Aaron Householder, Carl Ziegler, Juliette Becker, Perry Berlind, Allyson Bieryla, Christopher Broeg, Michael L. Calkins, Jeffrey D. Crane, Tansu Daylan, Julien de Wit, Jason D. Eastman, David Ehrenreich, Gilbert A. Esquerdo, Michael Fausnaugh, Yadira Gaibor, David W. Latham, Monika Lendl, Andrew W. Mayo, Gaetano Scandariato, Steve Shectman, Stephanie Striegel, Johanna Teske, Thomas G Wilson

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Detailed Architecture of the L 98-59 System and Confirmation of a Fifth Planet in the Habitable Zone by Charles Cadieux, Alexandrine L’Heureux, Caroline Piaulet-Ghorayeb, René Doyon, Étienne Artigau, Neil J. Cook, Louis-Philippe Coulombe, Pierre-Alexis Roy, David Lafrenière, Pierrot Lamontagne, Michael Radica, Björn Benneke, Eva-Maria Ahrer, Drew Weisserman, Ryan Cloutier

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The Moon as a Cosmic-Ray Spectrometer: Prospects for MeV Gamma-Ray Observations by Tatsuki Fujiwara, Ellis R. Owen, Yoshiyuki Inoue, Manel Errando, Kohei Fukuda, Kazuhiro Nakazawa, Hirokazu Odaka, Keigo Okuma, Kentaro Terada, Naomi Tsuji, Yasunobu Uchiyama, Hiroki Yoneda, Ao Zhang

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Design and Analysis of Compatible Platform Screen Door Structure by HE Dongshan, PENG Jiantao, RAO Meiwan, ZHAO Jun

“…To better meet the safety, efficiency, and convenience requirements of passenger boarding/alighting in interoperability scenarios, it is necessary to conduct in-depth research on PSD compatibility schemes and structural performance, taking into account the train-type characteristics and load environments of intercity railways, city (suburban) railways, and urban rail transit vehicles. [Method] Taking the cross-line operation of Type-D and CRH6 trains as the research object for the through operation scenario, and based on the characteristics of passenger compartment door positions and parameters for through-operation trains, a side-hinged and telescoping composite compatible PSD typical structure and a full-side compatible PSD layout scheme are proposed. …”
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Equation of State Independent Determination on the Radius of a 1.4 M⊙ Neutron Star Using Mass–Radius Measurements by Chun Huang

“…Our results are consistent with X-ray timing, gravitational-wave, and nuclear physics constraints, while avoiding EOS-related biases. The same method has also been applied to a simulated mass–radius data set, based on our knowledge of future X-ray telescopes, demonstrating the model's ability to recover the injected R _1.4 value in certain cases. …”
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Enabling Robust Exoplanet Atmospheric Retrievals with Gaussian Processes by Yoav Rotman, Luis Welbanks, Michael R. Line, Peter McGill, Michael Radica, Matthew C. Nixon

“…Atmospheric retrievals are essential tools for interpreting exoplanet transmission and eclipse spectra, enabling quantitative constraints on the chemical composition, aerosol properties, and thermal structure of planetary atmospheres. …”
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An Elemental Abundance Diagnostic for Coordinated Solar Orbiter/SPICE and Hinode/EIS Observations by David H. Brooks, Harry P. Warren, Deborah Baker, Sarah A. Matthews, Stephanie L. Yardley

“…We also perform an empirical experiment, using Hinode/EIS measurements of coronal fan loop temperature distributions weighted by randomly generated FIP bias values, to show that our diagnostic method can provide accurate results as it recovers the input FIP bias to within 10%–14%. …”
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The marine avifauna of Matthew and Hunter Islands, two remote volcanoes of the New Hebrides chain by P. Borsa, J. Baudat-Franceschi

“…Breeding birds recorded on Matthew and Hunter Islands in the tropical southwestern Pacific between 1973 and 2018 are summarised from a compilation of reports, for which various methods were used for counting seabirds. These methods included line transects, or direct observations using telescope or binoculars, or exhaustive counts, depending on the species observed and its nesting habitat. …”
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A Systematic NLTE Study of Very Metal-poor Stars with Metallicity down to −4.3 dex. I. Global Stellar Parameters Based on High-resolution Spectra by Jianrong Shi, Gang Zhao, Shuai Liu, Zeming Zhou, Haining Li, Hongliang Yan, Sofya Alexeeva, Huawei Zhang, Wako Aoki, Tadafumi Matsuno, Jingkun Zhao, Huiling Chen, Yufu Shen

“…Very metal-poor (VMP) stars provide a record of the chemical composition and dynamics of the early Galaxy. Based on the high-resolution and high signal-to-noise ratio spectra from the Subaru Telescope for 103 VMP stars, in this series of papers we homogeneously investigate the nonlocal thermodynamic equilibrium (NLTE) abundances of important astrophysical elements. …”
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Sequencing Silicates in the Spitzer Infrared Spectrograph Debris Disk Catalog. I. Methodology for Unsupervised Clustering by Cicero X. Lu, Tushar Mittal, Christine H. Chen, Alexis Y. Li, Kadin Worthen, B. A. Sargent, Carey M. Lisse, G. C. Sloan, Dean C. Hines, Dan M. Watson, Isabel Rebollido, Bin B. Ren, Joel D. Green

“…CLUES combines multiple unsupervised clustering methods with multiscale distance measures to discern new groupings and trends, offering insights into compositional diversity and geophysical processes within these disks. …”
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